NYC-WTC_000233539

NYC 9/11 Public Portal Document

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R02100400R02100400R021 00400 R02100400R02100400R02100400 06A 06A 06A Client ID: 07A 07A 07A 039051 02 039051 02 039051 02 Lab No.:039052 02 039052 02 039052 02 02/10/09 02/10/09 02/10/09 Date Sampled: 02/10/09 02/10/09 02/10/09 Matrix:

Component TEF ■ of Isomer RDL Units TEF ■ of Isomer RDL

2,3,7,8-CI4DBF7.9 0.79 0.13 pg 2.1 0.21 1.6 2,3,7,8-CI4DBai.4 <1.4 0.48 <0.48 <0.48 0.36 1,2,3,7,8-CI5DBIF5 0.076 0.26 0.69 0.035 0.32 2,3,4,7,8-CI5DEf2 1.1 0.25 0.55 0.28 0.31 1,2,3,7,8-CI5DBJB5 0.33 1.2 <1.2 <0.61 0.41 1,2,3,4,7,8-CI6DBF 0.14 0.66 <0.66 <0.066 0.55 1,2,3,6,7,8-CI6DaF 0.11 0.28 0.82 0.082 0.55 2,3,4,6,7,8-CI6DBa= 0.16 0.32 0.70 0.070 0.63 1,2,3,7,8,9-0160609 <0.039 0.36 <0.36 <0.036 0.70 1,2,3,4,7,8-016(260 0.075 0.18 <0.18 <0.018 0.45 1,2,3,6,7,8-016060 <0.075 0.17 <0.17 <0.017 0.43 1,2,3,7,8,9-CI6DaD 0.11 0.42 <0.42 <0.042 0.42 1,2,3,4,6,7,8-CLgOBF <0.090 22 <22 <0.22 16 1,2,3,4,7,8,9-CI7DBF <0.17 19 <19 <0.19 18 1,2,3,4,6,7,8-CIZJBBD 0.026 0.31 1.3 0.013 1.3 1,2,3,4,6,7,8,9-(III8DBF 0.0019 0.25 6.3 0.0063 1.1 1,2,3,4,6,7,8,9-<IIBDBD 0.011 0.4 8.7 0.0087 3.9

TEF 2.9 pg 0.70 MAX TEF <4.7 <2.4

ET4CDF 23 10 0.13 pg 4.4 5 0.27 EP5CDF 12 7 0.26 1.8 3 0.32 EH6CDF 4.1 3 0.32 1.9 3 0.63 ZH7CDF <25 0 20 <20 0 17 OCDF 1.9 1 0.25 6.3 1 1.1 ET4CDD 12 7 0.22 0.43 1 0.36 EP5CDD 12 4 1 1.3 2 0.41 ZH6CDD 13 6 0.17 <0.17 0 0.45 ZH7CDD 2.6 1 0.31 2.6 2 1.3 OCDD 11 1 0.4 8.7 1 3.9 Surrogate Recoveries % 2,3,7,8-T4CDF-9SC12 108 2,3,7,8-T4CDD-aSC12 95 1,2,3,7,8-P5CDB313C12 105 1,2,3,7,8-P5CD0813C12 111 1,2,3,6,7,8-H60OF-13C12 70 1,2,3,6,7,8-H6CSBD-13C12 89 1,2,3,4,6,7,8-H7QDF-13C12 60 1,2,3,4,6,7,8-H^DD-13012 86 OCDD-13C12 77 76

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CONFIDENTIAL, CITY_21MC100_003483994

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000233544